Preservative composition



l 35 I then incorporate PatentedFeb. s, 1924.

WALTER O. SNELLING, OF ALLINTOWN, PENNSYLVANIA.

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No Drawing.

To all whom it ma concern:

Be it known that ,WAumn O. SNELLING,

a fungicidal compositions useful in the treatment of fabrics, rope and like materials, for the purpose of protectin such materials from deterioration ,throug the growth of bacteria and molds. w

The use of metallic salts of the naphthenic acids, and particularly the copper salt, as fungicidal afents in paints is. a ready 2 known, but have discovered that for many purposes improved results may be obtained by emplo g cop er naphthenate di$olved in a non-dgmg oi as a preservative composition or protecting aglegnt for cloth, rope, wood, or'other materia subject to rottin and decay as the result of the growth 0 molds and other micro-organisms.-

In the preferred form of my invention copper 'naphthenate as my active. fungicidal agent, and I dis- 7 I employ antiseptlc and "solve the copper naphthenate in dichlorbenzone, by t materials at a tem rature sli htl in excess of the melting point of the 'c orbe'nzene.

bricat' 'oil, or in a non-dryin organic vehicllf such as tar, petroleum, gudge oil or other like materia' R v 40 Instead of employin dichlorbenz'ene as the primary solvent 0 my metallic naphthenate, I ma employ'man other organic solvents, or may di y dissolve m metallic naphthenate a' non-drying o' by thoroug 1y incorporating/the metallic naphthenat'e with the oilg vehicle,-preferably' with gentle warming an trituratiom Among the large number of non-drying organic materials which I may use as solso. vents for metallic naphthenates in the practice of my invention, I preferthe use of dichlorbenzene, chlorinated na hthalene, ethylene trichloride, molten napht alene, or equivalent materials Among the well in excess of the melting horoughly incorporating thetwo' impregn the mixture or'soliitionso obtained m a non-drying oil such as lu-' may be used although usually wit less satis- I 100 vehicles Application filed April 17, 1923. 86118.1 No. 032,772.

which I may use as solvents and carriers of my metallic naphthenates, I prefer to use petrolatum, tar, mineral oils, rosin oils, or other inexpensive liquid or semi-liquid hydrocarbon. I

TAs an example of my invention, I will describe a process which I- may employ in the protection of tent cloth, rope cables, fishing nets and other like ob'ects com sed of vegetable fibers subject to eterioratlon from mold. I first prepare naphthenic acids from crudepetroleum in the usual way, although synthetic naphthenic acids may be used with ual success. I next pre are the copper sa t of my naphthenic aci s, preferably bIv1 neutralization of theacids with a fixed alka following by treatment with a water soluble copper salt such as copper sulfate for exam le by methods well known in the art.

aving prepared copper napthenate as above described or in any other suitable way I next heat toge'ther equal parts by we ght of copper naphthenate and dichlorbenzene, using atemperature only sli htly point of the die lorbenzene, rubbing or triturating the two materials together continuously until thorough incorporation is secured. The product so obtained may be incorporated with gentle warming in petroleum, tar, mineral oil, or any other'suitable vehicle, and maythen. ate wood, cloth, rope or other material that is to be protected against theaction of micro-organism's such as molds.

The essential feature of my 'invention is the employment of a metallic salt of a naphthenic acid dissolved or suspended in a nondryi-ng liquid vehicle as a protective agent againstbacterialandmold owth. Althougl Ihave referred specifica y to copper nap thenate as my preferred agent, my invention is not limited to the use of this compound,

as I find that other metallic na hthenates factory results than when the copper naplr. thenate is employed, owing to their possessing weaker bactericidal and fungicidal properties. Although I have illustrated in invention b a specific embodiment, it sho d be noted atifimy inveliztion is n31; limited' tol tit: spec cexam ven an man eqmva en may be used with y equivalent results, and accordingly no limitations should be imposed except such as are indicated in the appended claims.

1 claim: I

1. A reservative composition comprisin e metaliic salt of nephthenic ecid dissolv in a non-drying liquid menstruum;

2. A preservative composition comprising copper naphthenate dissolved in a non-drying liquid menstruum.

3. A preservatix e composition comprisin copper naphthenate dissolved in a. liqui non-drying mineral hydrocarbon.

e. A preservative composition comprising copper nephthenate dissolved in e non-dry ing oil.

5. The process of protecting vegetable am e fibers from decay which comprises impreglisting such fibers with a, metallic naphthenate dissolved in a non-drying oil.

6. The process of protecting vegetable fibers from decay whic comprises impreg mating such fibers with a. composition comprising a, metallic naphthenete, e chlorinated hydrocarbon and a non-drying oil.

7. The process of protecting vegetable fibers from decay which comprises impregnatin such fibers with copper-nephthenete and dichlorbenzene dissolved in a liquid nondriing vehicle.

'n testimony whereof, I have hereunto subscribed my name this 14th day of April, 1923. V

WALTER O. SNELLING. 

